Herpes is a contagious viral infection caused by the herpes simplex virus (HSV). There are two members of the herpes simplex virus family: HSV-1 and HSV-2. HSV-1, or oral herpes , can cause cold sores and blisters around the mouth and on one’s face, while HSV-2 can lead to genital herpes outbreaks. Herpes Simplex is an infection caused by the herpes simplex virus, which can lead to sores and blisters on various parts of the body. HSV-1 primarily causes oral herpes , characterized by cold sores around the mouth, while HSV-2 is typically associated with genital herpes . Herpes is caused by the herpes simplex virus. There are two types, oral herpes and genital herpes , which are usually sexually transmitted. Find out more here.